On some frenulate species (Annelida : Polychaeta : Siboglinidae) from mud volcanoes in the Gulf of Cadiz (NE Atlantic)

Collections of Frenulata made by the RV Professor Logachev in the Gulf of Cadiz in 2006 contain two new species, one belonging to the genus Spirobrachia, and another that was assigned to a new genus. Spirobrachia tripeira n. sp. is the first record of the genus in the North Atlantic Ocean; it has a...

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Bibliographic Details
Main Authors: Hilario, A, Cunha, MR
Format: Article in Journal/Newspaper
Language:English
Published: Consejo Superior de Investigaciones Científicas 2008
Subjects:
Siboglinidae
Frenulata
Pogonophora
mud volcano
Gulf of Cadiz
North Atlantic
Online Access:http://hdl.handle.net/10773/6560
Description
Summary:Collections of Frenulata made by the RV Professor Logachev in the Gulf of Cadiz in 2006 contain two new species, one belonging to the genus Spirobrachia, and another that was assigned to a new genus. Spirobrachia tripeira n. sp. is the first record of the genus in the North Atlantic Ocean; it has a very stiff, straight, orange tube; its tentacles have pinnules and are arranged in a spiral crown without a lophophore. Bobmarleya gadensis n. gen. et n. sp. is characterised by an unusually long tentacular crown composed of about 40 free tentacles. It shares many characteristics with the genus Oligobrachia but the large number and extreme length of the tentacles and a combination of other characters justify the designation of a new genus. The specimens of Lamellisabella denticulata Southward, 1978 collected during the M.S. Merian 03/01 cruise provide the first record of this species in the Gulf of Cadiz. Training Through Research Programme IOC-UNESCO EC FP6 - GOCE-CT-2005-511234 HERMES FCT - SFRH/BPD/22383/2005

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